History of present illness
A middle school student is brought to the hospital for 2 weeks of cough and persistent and worsening fevers, up to 103.3°F, over the past 3 days. She has a mild headache but reports no neck stiffness, photophobia, or vomiting. She has a mild and improving sore throat as well as a mild cough but no shortness of breath. Her parents say she has lost her color, but deny any melena, vomiting, rectal bleeding, or heavy menses.
Vital signs & physical examination
Vital signs are normal except for a pulse of 113 beats/min. Physical exam is normal except for tachycardia and mild skin pallor. Lungs are clear and the throat looks normal.
Initial diagnostic testing